Mcc questions about halo reach

So I recently bought halo reach through the Xbox store online and now that reach is coming to mcc do I have to pay more to have the reach campaign and firefight? I wouldn’t have bought reach if I knew it was coming to mcc so I wouldn’t have to pay more money to play with my friends

Yes Reach Campaign and Firefight for MCC are going to be paid DLC, so you would need to buy those if you wanted to play them. The multiplayer portion will be free though so you can play that as soon as it comes out.